Home / 449,235.20-619,939.84-245,285.47

Finding the Fourth Proportional to 449,235.20, 619,939.84 and 245,285.47

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Solution

The fourth proportional to 449,235.20, 619,939.84 and 245,285.47 is: 338,491.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,235.20 : 619,939.84 = 245,285.47 : x
  2. Step 2: Convert to fraction form
    449,235.20/619,939.84 = 245,285.47/x
  3. Step 3: Cross multiply
    449,235.20x = 619,939.84 × 245,285.47
  4. Step 4: Simplify right side
    449,235.20x = 152,062,235,026.13
  5. Step 5: Solve for x
    x = 152,062,235,026.13/449,235.20
  6. Step 6: Final answer
    x = 338,491.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.